<template>
	<view class="content">
		<view class="navbar">
			<view class="nav-item" :class="active==1?'current':''" @click="change_item(1)">
				综合排序
			</view>
			<view class="nav-item" :class="active==2?'current':''" @click="change_item(2)">
				销量优先
			</view>
			<view class="nav-item" :class="(active==3||active==4)?'current':''" @click="change_item2">
				<text>价格</text>
				<view class="p-box">
					<text class="yticon icon-shang" :class="active==4?'active':''"></text>
					<text class="yticon icon-shang xia" :class="active==3?'active':''"></text>
				</view>
			</view>
		</view>
		<view class="goods-list">
			<view class="goods-item" v-for="item in goodslist" @click="navTo('/pages/product/product?goods_id='+item._id)">
				<view class="image-wrapper">
					<image :src="item.img" mode="aspectFill"></image>
				</view>
				<text class="title clamp">{{item.name}}</text>
				<view class="price-box">
					<text class="price">{{item.price}}</text>
					<text>已售{{item.sales}}</text>
				</view>
			</view>
		</view>

		<lc-loading :status="status"></lc-loading>
	</view>
</template>

<script>
	import {
		goodslistApi
	} from '@/api/api.js'
	export default {
		data() {
			return {
				goodslist: [],
				cate_id: '',
				is_top: false,
				skip: 0,
				limit: 10,
				active: 1,
				// finished: false,
				status: 'more' //loading 加载中 finished 完成 more 还有加载
			}
		},
		onReachBottom() {
			console.log('到底了 咱去加载下一页吧')
			//3
			if (this.status === 'loading') {
				console.log('已经没数据了  别请求服务器了')
				return
			}
			this.skip = this.goodslist.length
			this.Goodslist()
		},
		onLoad(options) {
			this.cate_id = options.cate_id;
			this.is_top = options.is_top || 0;
		},
		methods: {
			Goodslist() {
				this.status.loading
				let {
					cate_id,
					is_top,
					skip,
					limit,
					active
				} = this
				goodslistApi({
					cate_id,
					is_top,
					skip,
					limit,
					sort_type: active
				}).then(res => {
					console.log(res.data)
					if (res.data.code == 1) {
						this.goodslist = this.goodslist.concat(res.data.data)
					}
					let len = this.goodslist.length
					if (len >= res.data.count) {
						// this.finished = true
						this.status = 'finished'
					} else {
						// this.finished = false
						this.status = 'more'
					}
				})
			},
			change_item(num) {
				console.log(num)
				this.active = num;
				this.goodslist.length = 0;
				this.status = 'more';
				this.Goodslist();
			},
			change_item2() {
				this.active = this.active == 3 ? 4 : 3
				console.log(this.active)
				this.goodslist.length = 0;
				this.status = 'more';
				this.Goodslist();
			}
		},
		created() {
			this.Goodslist()
		}
	}
</script>

<style lang="scss">
	page,
	.content {
		background: $page-color-base;
	}

	.content {
		padding-top: 96upx;
	}

	.navbar {
		position: fixed;
		left: 0;
		top: var(--window-top);
		display: flex;
		width: 100%;
		height: 80upx;
		background: #fff;
		box-shadow: 0 2upx 10upx rgba(0, 0, 0, .06);
		z-index: 10;

		.nav-item {
			flex: 1;
			display: flex;
			justify-content: center;
			align-items: center;
			height: 100%;
			font-size: 30upx;
			color: $font-color-dark;
			position: relative;

			&.current {
				color: $base-color;

				&:after {
					content: '';
					position: absolute;
					left: 50%;
					bottom: 0;
					transform: translateX(-50%);
					width: 120upx;
					height: 0;
					border-bottom: 4upx solid $base-color;
				}
			}
		}

		.p-box {
			display: flex;
			flex-direction: column;

			.yticon {
				display: flex;
				align-items: center;
				justify-content: center;
				width: 30upx;
				height: 14upx;
				line-height: 1;
				margin-left: 4upx;
				font-size: 26upx;
				color: #888;

				&.active {
					color: $base-color;
				}
			}

			.xia {
				transform: scaleY(-1);
			}
		}

		.cate-item {
			display: flex;
			justify-content: center;
			align-items: center;
			height: 100%;
			width: 80upx;
			position: relative;
			font-size: 44upx;

			&:after {
				content: '';
				position: absolute;
				left: 0;
				top: 50%;
				transform: translateY(-50%);
				border-left: 1px solid #ddd;
				width: 0;
				height: 36upx;
			}
		}
	}

	/* 分类 */
	.cate-mask {
		position: fixed;
		left: 0;
		top: var(--window-top);
		bottom: 0;
		width: 100%;
		background: rgba(0, 0, 0, 0);
		z-index: 95;
		transition: .3s;

		.cate-content {
			width: 630upx;
			height: 100%;
			background: #fff;
			float: right;
			transform: translateX(100%);
			transition: .3s;
		}

		&.none {
			display: none;
		}

		&.show {
			background: rgba(0, 0, 0, .4);

			.cate-content {
				transform: translateX(0);
			}
		}
	}

	.cate-list {
		display: flex;
		flex-direction: column;
		height: 100%;

		.cate-item {
			display: flex;
			align-items: center;
			height: 90upx;
			padding-left: 30upx;
			font-size: 28upx;
			color: #555;
			position: relative;
		}

		.two {
			height: 64upx;
			color: #303133;
			font-size: 30upx;
			background: #f8f8f8;
		}

		.active {
			color: $base-color;
		}
	}

	/* 商品列表 */
	.goods-list {
		display: flex;
		flex-wrap: wrap;
		padding: 0 30upx;
		background: #fff;

		.goods-item {
			display: flex;
			flex-direction: column;
			width: 48%;
			padding-bottom: 40upx;

			&:nth-child(2n+1) {
				margin-right: 4%;
			}
		}

		.image-wrapper {
			width: 100%;
			height: 330upx;
			border-radius: 3px;
			overflow: hidden;

			image {
				width: 100%;
				height: 100%;
				opacity: 1;
			}
		}

		.title {
			font-size: $font-lg;
			color: $font-color-dark;
			line-height: 80upx;
		}

		.price-box {
			display: flex;
			align-items: center;
			justify-content: space-between;
			padding-right: 10upx;
			font-size: 24upx;
			color: $font-color-light;
		}

		.price {
			font-size: $font-lg;
			color: $uni-color-primary;
			line-height: 1;

			&:before {
				content: '￥';
				font-size: 26upx;
			}
		}
	}
</style>
